[INFO] updating cached repository https://github.com/servo/servo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/servo/servo
[INFO] [stderr]  - [deleted]               (none)     -> jdm-patch-34
[INFO] [stderr]  - [deleted]               (none)     -> jdm-patch-36
[INFO] [stderr]  - [deleted]               (none)     -> jdm-patch-44
[INFO] [stderr]  - [deleted]               (none)     -> jdm-patch-52
[INFO] [stderr]    812ca3b4f2..124b04e1b7  auto            -> auto
[INFO] [stderr]  * [new branch]            jdm-patch-31    -> jdm-patch-31
[INFO] [stderr]    d671010e46..a931a80cf5  master          -> master
[INFO] [stderr]  * [new branch]            tmp-try-daily   -> tmp-try-daily
[INFO] [stderr]  + c9eaf6fcfd...80c5e0d40d try             -> try  (forced update)
[INFO] [stderr]  * [new branch]            try-communitytc -> try-communitytc
[INFO] [stderr]  + b80babd285...8b30a17881 try-mac         -> try-mac  (forced update)
[INFO] [stderr]  + be2f7f5f36...5efe1e9de5 try-taskcluster -> try-taskcluster  (forced update)
[INFO] [stderr]  + 0cc3c7271c...f573bda4ac try-windows     -> try-windows  (forced update)
[INFO] [stderr]  + e1826be6f0...3de6aa2ed1 try-wpt         -> try-wpt  (forced update)
[INFO] [stderr]  + 3cb0b2ef89...dd28f573a5 try-wpt-mac     -> try-wpt-mac  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a931a80cf5ad644cba8d8445cd0a62e55f04b906
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: invalid Cargo.toml syntax
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.